7 Diagnostics and Troubleshooting
7.1 Warning and Alarm Types
Warning/
alarm type
Description
Warning
A warning indicates an abnormal operating
condition that might lead to an alarm. A warning
stops when the abnormal condition is removed.
Alarm
An alarm indicates a fault that requires
immediate attention. The fault always triggers a
trip or trip lock. Reset the frequency converter
after an alarm.
Reset the frequency converter in any of 4 ways:
•
Press [Reset]/[Off/Reset].
•
Digital reset input command.
•
Bus communication reset input command.
•
Auto reset.
Trip
When tripping, the frequency converter suspends
operation to prevent damage to the frequency converter
and other equipment. When a trip occurs, the motor coasts
to a stop. The frequency converter logic continues to
operate and monitor the frequency converter status. After
the fault condition is remedied, the frequency converter is
ready for a reset.
Trip lock
When trip locking, the frequency converter suspends
operation to prevent damage to the frequency converter
and other equipment. When a trip lock occurs, the motor
coasts to a stop. The frequency converter logic continues
to operate and monitor the frequency converter status.
The frequency converter starts a trip lock only when
serious faults occur that can damage the frequency
converter or other equipment. After the faults are fixed,
cycle the input power before resetting the frequency
converter.
7.2 Warning and Alarm Displays
Setup 1
Status
Quick
Menu
Main
Menu
130BD111.10
Illustration 7.1 Warning Display
An alarm or trip lock alarm shows in the display along with
the alarm number.
Setup 1
Status
Quick
Menu
Main
Menu
130BD112.10
Illustration 7.2 Alarm/Trip Lock Alarm
In addition to the text and alarm code on the frequency
converter display, there are 3 status indicator lights. The
warning indicator light is yellow during a warning. The
alarm indicator light is red and flashing during an alarm.
130BD062.10
D
Hand
On
Reset
Auto
On
OK
On
Warn
Alarm
Illustration 7.3 Status Indicator Lights
Diagnostics and Troubleshoo...
VLT
®
AutomationDrive FC 360
46
Danfoss A/S © 03/2017 All rights reserved.
MG06A702
7
7
